This is the One Face Wash You Need in Your Carry-On Bag

3.4 isn't exactly a magical or special number, but it's always the one we're scanning for as we pack our carry-on bags for vacation. The reason, of course, is because the TSA limits liquids (along with aerosols, gels, creams, and pastes) that exceed 3.4 ounces in all carry-on luggage.

WATCH: How to Pack Your Carry-On Bags Like a Flight Attendant

But what if we told you there was a better way than running to the drug store to look for your favorite face wash in travel size? Or clumsily transferring your face wash into a travel-sized bottle (only to run out by day five of your beach vacay)? There is.

Ladies, may we present to you solid face wash, the beauty trend frequent fliers should get particularly excited about. These cleansing sticks come from a variety of brands at several price points, and are blissfully spill-proof to boot. Some of our favorites include this paraben-free power cleanser from Oars + Alps ($18) and Julep's cleansing balm stick ($28).

They're so effective and hassle-free, we may start using them even when we're not traveling.